= Multi-layer insulation
{wiki=Multi-layer_insulation}
Multi-layer insulation (MLI) is a thermal insulation technology commonly used in spacecraft, satellites, and other applications where thermal control is critical, particularly in the vacuum of space. The primary purpose of MLI is to minimize heat transfer between different areas, especially to protect sensitive equipment from extreme temperatures. \#\#\# Structure: MLI consists of multiple layers of thin, shiny materials—usually metallic and non-metallic films—separated by small spacers.
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